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When should I use require() and when to use define()?
...ing it".
The require() function is where you use your defined modules, in order to be sure that the modules are defined, but you are not defining new modules there.
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How do you produce a .d.ts “typings” definition file from an existing JavaScript library?
...curacy you're looking for. Let's review the options, in roughly descending order of desirability.
Maybe It Exists Already
Always check DefinitelyTyped (https://github.com/DefinitelyTyped/DefinitelyTyped) first. This is a community repo full of literally thousands of .d.ts files and it's very likel...
Class with single method — best approach?
...
If there is no reason to have an instance of the class created in order to execute the function then use the static implementation. Why make the consumers of this class create an instance when one is not needed.
sh...
UITableView set to static cells. Is it possible to hide some of the cells programmatically?
...ovide our own data source, which delegates to the UITableViewController in order to get the static cells.
Easiest is to subclass UITableViewController, and override all methods which need to behave differently when hiding cells.
In the simplest case (single section table, all cells have the same h...
How is attr_accessible used in Rails 4?
...ible in the model anymore.
Dealing with accepts_nested_attributes_for
In order to use accepts_nested_attribute_for with strong parameters, you will need to specify which nested attributes should be whitelisted.
class Person
has_many :pets
accepts_nested_attributes_for :pets
end
class PeopleC...
Fast way to get image dimensions (not filesize)
... as you need to understand the file format (or use a library of course) in order to know how to read it. You can probably find some code that will in most cases give a rough estimate of the dimensions without reading the whole file, but I think some filetypes may require you to read the whole file t...
Database Design for Revisions?
...key or clustered key? What key we can add in the Design 1 history table in order to make the search quicker?
– gotqn
Apr 14 '12 at 8:09
...
What is Normalisation (or Normalization)?
...omalies, meaning that you have to decompose and scan individual values in order to find what you are looking for. For example, if one of the values is the string "Ford, Cadillac" as given by an earlier response, and you are looking for all the ocurrences of "Ford", you are going to have to break...
Reference — What does this symbol mean in PHP?
...nd y have the same key/value pairs
in the same order and of the same types
x !== y Non-identity True if x is not identical to y
++ x Pre-increment Increments x by one, then returns x
x ++ Post-increment Returns x, then increments x by one
-- x Pr...
Flask-SQLalchemy update a row's information
... pickled attribute of the model. Pickled attributes should be replaced in order to trigger updates:
from flask import Flask
from flask.ext.sqlalchemy import SQLAlchemy
from pprint import pprint
app = Flask(__name__)
app.config['SQLALCHEMY_DATABASE_URI'] = 'sqllite:////tmp/users.db'
db = SQLAlchem...